Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Textbook Question
Chapter 12, Problem 3RQ
What is a phylogeny a description of?
a. mutations
b. DNA
c. evolutionary history
d. organisms on Earth
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What is used to determine phylogeny? a. mutations b. DNA c. evolutionary history d. organisms on earth
Using the phylogeny, which statement best explains the evolutionary relationship of birds and bats?
A. C is an example of divergent evolution shows a common ancestor.
B. C is an example of convergent evolution does not show a common ancestor.
C. A and B are examples of analogous structures derived from a common ancestor.
D. A and B are examples of homologous structures that are not derived from a common ancestor.
a diagram that shows evolutionary connections between clades is called a_______ .a. karyotype c. cladogramb. molecular clock d. homologous structure
Chapter 12 Solutions
Concepts of Biology
Ch. 12 - Figure 12.3 In what levels are cats and dogs...Ch. 12 - Figure 12.8 Which animals in this figure belong to...Ch. 12 - What is a phylogeny a description of? a. mutations...Ch. 12 - What do scientists in the field of systematics...Ch. 12 - Which statement about the taxonomic classification...Ch. 12 - Which best describes the relationship between...Ch. 12 - Which best describes a branch point in a...Ch. 12 - Which statement about analogies is correct? a....Ch. 12 - What kind of trait is important to cladistics? a....Ch. 12 - What is true about organisms that are a part of...
Ch. 12 - Which assumption of cladistics is stated...Ch. 12 - A monophyletic group is a ______. a. phylogenetic...Ch. 12 - How does a phylogenetic tree indicate major...Ch. 12 - List the different levels of the taxonomic...Ch. 12 - Dolphins and fish have similar body shapes. Is...Ch. 12 - Describe maximum parsimony.Ch. 12 - How does a biologist determine the polarity of a...
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- Which situation would most likely lead to allopatric speciation? a. A flood causes the formation of a new lake. b. A storm causes several large trees to fall down. c. A mutation causes a new trait to develop. d. An injury causes an organism to seek out a new food source.arrow_forwardWhich statement about the taxonomic classification system is correct? a. There are more domains than kingdoms. b. Kingdoms are the top category of classification. c. A phylum may be represented in more than one kingdom. d. Species are the most specific category of classification.arrow_forwardWhat do scientists in the field of systematics accomplish? a. discover new fossil sites b. organize and classify organisms c. name new species d. communicate between field biologistsarrow_forward
- The wing of a bird and the arm of a human are examples of ______. a. vestigial structures b. molecular structures c. homologous structures d. analogous structuresarrow_forwardWhy do scientists apply the concept of maximum parsimony? a. to decipher accurate phylogenies b. to eliminate analogous traits c. to identify mutations in DNA codes d. to locate homoplasiesarrow_forwardWhich best describes a branch point in a phylogenetic tree?a. a hypothesisb. new lineagec. hybridizationd. a matingarrow_forward
- How do we know how old a fossil is? A) We compare it to current species and see how much has changed B) We see how much soil is on top of it C) We use radiometric datingarrow_forwardWhich evolutionary pattern is represented by the similarities between these two organisms that live on separate continents? a.) coevolution b.) convergent evolution c.) directional evolution d.) divergent evolutionarrow_forwardWhich is true concerning how fossils are used as evidence? A. Fossils cannot be compared to one another but can be compared to living organisms. B. Fossils can be compared to one another but not to living organisms. C. Fossils cannot be compared to one another or to living organisms. D. Fossils can be compared to one another and to living organisms.arrow_forward
- Which mechanism of fossil formation created a replica of an organism's original form? a natural cast b amber-preserved c permineralization d trace fossilarrow_forwardThe idea that the development of an animal embryo follows the evolutionary history of its species is key in which theory? A. Embryology B. Recapitulation C. Phylogeny D. Evolutionarrow_forwardIn scientific classification common names of organisms are not used?arrow_forward
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